Rinnai Demand Duo® H-SERIES Indoor Commercial Hybrid Water Heater – 100 Gallon
- Authorized Online Dealer
- Free Shipping (exclusions may apply)
- We Beat The Lowest Price
- Fast 4–7 Day Delivery
- Manufacturer Warranty Included
- Questions? Call Our Experts: +1 (800) 484-0224
Rinnai Demand Duo® H-SERIES Indoor Commercial Hybrid Water Heater – 100 Gallon is backordered and will ship as soon as it is back in stock.
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Price Match Guarantee
Price Match Guarantee
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Price Matches Do Not Apply For Exchange Orders, or replacements
Please Note: Some Exclusions May Apply
Delivery and Shipping
Delivery and Shipping
Your order processing time is 1 to 2 days. Please note that the cut-off time for order placement is 6 p.m. Orders received after this time will be processed on the following business day.
Your order will arrive within 4 to 7 days on average (free shipping over $200). Shipping for orders under $200 incurs a flat fee of $15. We currently offer shipping only within the continental United States (island deliveries may incur additional costs); international shipping is not available.
Mostly all of our orders are shipped via one of our third-party freight carriers (18-wheeler). If your order has an item that is shipped on a freight carrier, you will be contacted to schedule a curbside delivery time. Please make sure to put the correct phone number at checkout.
Upon placing your order, you will receive a confirmation e-mail. This message will confirm your order has been received by our system, and your credit card was approved for purchase. We will not charge your card until the item has shipped unless it's back ordered and we need to hold an item for you.
As soon as your order is received on our end, we process it!
Rinnai Demand Duo® H-SERIES Indoor Commercial Hybrid Water Heater –...
• Authorized Online Dealer
• Free Shipping + No Sales Tax (exclusions may apply)
• We Beat The Lowest Price
• Fast 4-7 Day Delivery
• Manufacturer Warranty Included
• Questions? Call Our Experts: +1 (800) 484-0224
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Description
The Rinnai Demand Duo® H-SERIES Indoor Commercial Hybrid Unit is engineered for superior commercial water heating performance. Combining tank and tankless technology, this hybrid unit delivers unmatched efficiency, exceptional first-hour delivery, and rapid tank recovery to keep up with the demands of any business environment. Its advanced features, including dual thermistors and integrated pump control, ensure precise temperature management and optimized energy use. Easy installation, pre-assembled connections, and versatile venting options make this unit ideal for restaurants, hotels, offices, and industrial applications. Save energy, reduce operating costs, and enjoy long-lasting reliability with the Rinnai Demand Duo® H-SERIES.
Key Features:
- Multiple venting options: Single and common vent configurations
- Easy to install with pre-assembled gas and electrical connections
- Dual thermistors for precise temperature control
- Integrated pump control with optimized recovery logic
- Multiple tankless integration options
- High first-hour delivery (119 gallons) and fast tank recovery
- Energy-efficient design reduces operating costs
- Thermal efficiency: 97%
- Long-lasting durability with up to 2X longer warranty than traditional tanks
- Maximum BTU output: 398,000
What’s Included![]()
- Rinnai Demand Duo® H-SERIES Hybrid Unit (CHS398100HCXIN)
- Pre-assembled gas and electrical connections
- Installation manual and warranty information
Specifications:
| Specification | Details |
|---|---|
| Part Number | CHS398100HCXIN |
| Product Type | Indoor Commercial Hybrid Water Heater |
| Fuel Type | Hybrid (Gas & Electric) |
| Tank Capacity / First Hour Delivery | 100 Gallon / 119 Gallons |
| Thermal Efficiency | 97% |
| Maximum BTU Output | 398,000 |
| Product Dimensions (W × H × D) | 41" x 68" x 39" |
| Product Weight | 530 Lbs |
| Shipping Weight | 890 Lbs |
| Venting Options | Single Vent: Two Pipe PVC/CPVC, Concentric Polypropylene (PP) |
| Common Vent Options | PP and PVC/CPVC Common Venting – fewer wall/roof cuts, longer vent length |
| UPC | 766156017919 |
| Size | 100 Gallon |
| Component Type | Water Heater |
| Vent Type | Vented |
Care & Maintenance Instructions
- Regularly inspect venting and water lines for leaks or blockages.
- Flush the tank periodically to remove sediment and maintain efficiency.
- Ensure professional servicing annually for optimal performance.
- Do not modify or bypass safety features to preserve warranty coverage.
Let customers speak for us
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Peaceful water sound and super easy to maintain.
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This massive waterfall made our pool feel like a resort. The roar of that cascade is hypnotizing and the finish looks incredibly lifelike. We chose brown rock and it blends perfectly. Installation needed 3 people, but totally worth it.
Does exactly what it’s supposed to do.
Looks incredible in the backyard. Setup wasn’t hard
This grill is a beast! Super high quality.
We sold our wood unit for this, and haven’t looked back. Easy pilots, no mess, looks great
Works well. Sent in a timely manner. Cheapest online too!
Installation was extremely easy. Came with all the equipment needed!
We wanted something tropical, this fit perfectly!
